J
jet_nguyen


[tex]\sqrt{2{x}^{2}+5x+2} - 2\sqrt{{x}^{2}+5x-6}=1[/tex]
[tex]\sqrt{{x}^{2}+3x+2} - 2\sqrt{{x}^{2}+6x+2}=-\sqrt{2}[/tex]
[tex]x-\sqrt{x-1} -(x-1)\sqrt{x}+\sqrt{{x}^2-x}=0[/tex]
[tex]\sqrt{{x}^{2}+3x+2} - 2\sqrt{{x}^{2}+6x+2}=-\sqrt{2}[/tex]
[tex]x-\sqrt{x-1} -(x-1)\sqrt{x}+\sqrt{{x}^2-x}=0[/tex]